Automobile wire harness terminal bending equipment and method

Abstract

The invention relates to the technical field of automobile wire harness connector terminal machining, in particular to automobile wire harness terminal bending equipment and method.The automobile wire harness terminal bending equipment comprises a mounting mechanism, a supporting mechanism is arranged on the mounting mechanism, and the supporting mechanism comprises a fixed supporting frame and a movable supporting frame; and a bending mechanism is arranged on the supporting mechanism. The multi-layer terminal bending device has the advantages that the bending position of the multi-layer terminal is accurately positioned at one time through the bending module, so that the processing efficiency can be improved; the multiple bending assemblies are matched with the corresponding rotating connecting pieces, continuous bending operation is sequentially carried out on the multiple layers of terminals from top to bottom, and the bending interval time of the different layers of terminals is shortened. The multiple layers of terminals are correspondingly limited, so that the stability and the precision in the bending process are improved; the multiple layers of terminals are correspondingly blocked, so that mutual collision and extrusion of the adjacent layers of terminals on the motion trail in the bending process are avoided, and the terminal bending quality is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile wiring harness connector terminal processing, and particularly relates to an automobile wiring harness terminal bending equipment and method. BACKGROUND

[0002] The automobile wiring harness connector is a core component for realizing separable electrical connection in the wiring harness system, and is mainly used for providing a stable and low-resistance current path for internal terminals. The terminal is a precise metal part for realizing electrical connection in the connector, and the terminal realizes low contact resistance conduction through stable contact points. Terminal bending is a key process for manufacturing terminals in the production of wiring harness connectors. Common terminal bending methods include L-type bending (90-degree bending), which bends the terminal from the axial direction to 90 degrees through a bending equipment, and is commonly used for inserting into the control unit perpendicular to the wiring harness direction to realize conduction. In modern automobile electronics and high-end industrial equipment, the automobile wiring harness terminal connector is very precise, such as complex wiring harness terminal connectors with multiple rows and multiple columns of terminals, multiple rows of terminals in a ladder-shaped distribution, and terminals in the same row being equal in length. The bending mechanism is moved to the terminal to be bent at the corresponding layer for bending operation, and then repositioned for bending operation at the next layer of terminal to be bent. However, the repeated positioning and bending reduces the processing efficiency. When bending the next layer of terminal, the next layer of terminal will rebound in a small range during bending. If the distance between the two layers of terminals is close, the upper layer of terminals will collide and be extruded on the movement track of the lower layer of terminals, which may seriously deform or damage the terminals, thereby affecting the precision and quality of terminal bending.

[0003] Therefore, in order to improve the efficiency and quality of bending processing, the present application provides an automobile wiring harness terminal bending equipment and method. SUMMARY

[0004] The present application aims to solve the problems in the prior art and provides an automobile wiring harness terminal bending equipment and method.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: an automobile wiring harness terminal bending equipment, comprising a mounting mechanism for bottom support and front and rear side limiting, a support mechanism is arranged on the mounting mechanism, the support mechanism comprises a fixed support frame fixedly connected to the front of the top wall of the mounting mechanism and a movable support frame slidingly connected to the rear of the top wall of the mounting mechanism.

[0006] A bending mechanism is arranged on the support mechanism, the bending mechanism comprises an L-shaped positioning plate fixedly connected to the movable support frame and a plurality of bending assemblies arranged on the movable support frame, and further comprises a rotating connecting piece arranged on the fixed support frame, and the rotating connecting piece corresponds to the bending assemblies in front and back.

[0007] The L-shaped positioning plate and the bending assembly are connected with the fixed support frame and the rotating connecting piece through the forward sliding of the movable support frame to become a bending module, the bending positions of the multiple layers of terminals are positioned at one time, the multiple bending assemblies and the corresponding rotating connecting pieces cooperate to perform the bending operation of the multiple layers of terminals in order from top to bottom, and the bending sections of the terminals of adjacent layers are blocked by the bending assemblies.

[0008] In the automobile wire harness terminal bending equipment, the L-shaped positioning plate and the multiple bending assemblies are distributed in a stepped manner corresponding to the multiple layers of terminals of the wire harness terminals, and the rear side wall of the fixed support frame is provided with a slot position one corresponding to the front end of the L-shaped positioning plate.

[0009] In the automobile wire harness terminal bending equipment, the bending assembly comprises a plug-in connecting frame fixedly connected to the front side wall of the movable support frame, the middle part of the plug-in connecting frame is in a Z shape, and the rear side wall of the fixed support frame is provided with a slot position two corresponding to the front end of the plug-in connecting frame.

[0010] In the automobile wire harness terminal bending equipment, the vertical section of the right side wall of the plug-in connecting frame is rotationally connected with a rotating shaft, the middle part of the rotating shaft is in a cylindrical shape, the front end of the rotating shaft is in a cross shape, and the rear side wall of the rotating shaft is fixedly connected with a rotating driving piece.

[0011] In the automobile wire harness terminal bending equipment, the rotating driving piece comprises a connecting column one fixedly connected to the rear side wall of the rotating shaft and a gear one coaxially fixed with the connecting column one, the connecting column one is rotationally connected to the movable support frame, the gear one is rotationally connected to the rear side wall of the movable support frame, and the middle part of the rotating shaft is fixedly connected with a bending piece.

[0012] In the automobile wire harness terminal bending equipment, the rotating connecting piece comprises a connecting column two rotationally connected to the fixed support frame and a gear two coaxially fixed with the connecting column two, the gear two is rotationally connected to the front side wall of the fixed support frame, and the rear side wall of the connecting column two is provided with a cross-shaped slot corresponding to the front end of the rotating shaft.

[0013] In the automobile wire harness terminal bending equipment, two groups of driving mechanisms are arranged on the fixed support frame and the movable support frame, and the driving mechanism comprises a locking assembly and a driving assembly.

[0014] In the automobile wire harness terminal bending equipment, the driving assembly comprises a U-shaped movable frame slidingly connected to the fixed support frame and the movable support frame, a trapezoidal block two fixed to the horizontal section is arranged in the opening of the U-shaped movable frame, and the upper side wall of the U-shaped movable frame is fixedly connected with a rack two corresponding to the gear one and the gear two.

[0015] The locking assembly comprises a plurality of L-shaped movable frames slidably connected to the fixed support frame and the movable support frame, the L-shaped movable frames correspond to the rotating connecting pieces and the rotating driving pieces, the upper end of the L-shaped movable frame is fixedly connected with a rack one matched with the gear one and the gear two, and the lower end of the L-shaped movable frame is fixedly connected with a trapezoidal block one matched with the trapezoidal block two.

[0016] As a preferred technical scheme of the present application, the present application further provides an automobile wire harness terminal bending method, which is completed by using the automobile wire harness terminal device.

[0017] S2, pre-positioning: the manipulator grabs the connector, drives the connector and the terminal to move to the positioning of the installation mechanism, and the positioning of the bending position is performed by the butt joint of the supporting mechanism and the bending mechanism.

[0018] S3, layered continuous bending: the bending mechanism continuously bends the terminals from short to long from top to bottom.

[0019] S4, discharging: the supporting mechanism and the bending mechanism are disconnected, and the manipulator grabs the bent terminal to discharge.

[0020] Compared with the prior art, the present application has the following advantages: the L-shaped positioning plate and the bending assembly are connected to the fixed support frame and the rotating connecting piece to become a bending module by the forward sliding of the movable support frame, the bending position of the multiple terminals is accurately positioned at one time, which is beneficial to improve the processing efficiency; the multiple bending assemblies and the corresponding rotating connecting pieces are driven to rotate from the upper left to the lower right in sequence, the bending piece is turned over by 90 degrees and bent, the multiple terminals are sequentially and continuously bent from top to bottom, the bending interval time of the terminals of different layers is shortened; the top and bottom of the bending part of the uppermost layer of terminals are limited by the L-shaped positioning plate and the corresponding plug-in connecting frame, respectively, the top and bottom of the bending part of the non-uppermost layer of terminals are limited by the upper and lower adjacent plug-in connecting frames, respectively, the stability and precision in the bending process are improved; the bending section of the non-uppermost layer of terminals is limited by the left and right adjacent bending pieces after turning over, the bending sections of the terminals of adjacent layers are blocked by the bending pieces after turning over between them, the adjacent layers of terminals are prevented from colliding and extruding on the motion track in the bending process, and the quality of the terminal bending is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0022] Figure 1 It is a schematic view of the overall structure.

[0023] Figure 2Structure diagram of the wire harness terminal before bending.

[0024] Figure 3 Structure diagram of the wire harness terminal after bending.

[0025] Figure 4 Structure diagram of the L-shaped positioning plate and the bending assembly before being connected with the fixed support frame and the rotating connecting piece.

[0026] Figure 5 Structure diagram of Figure 4 Structure diagram from another perspective.

[0027] Figure 6 Structure diagram of the bending piece before being rotated.

[0028] Figure 7 Structure diagram of the bending piece after being rotated.

[0029] Figure 8 Structure diagram of the position relationship between the wire harness terminal before bending and the bending piece before being rotated.

[0030] Figure 9 Structure diagram of the position relationship between the wire harness terminal after bending and the bending piece after being rotated.

[0031] Figure 10 Partial structure exploded diagram of the driving mechanism.

[0032] Figure 11 Structure diagram of the U-shaped movable frame before being moved.

[0033] Figure 12 Structure diagram of the U-shaped movable frame during being moved.

[0034] In the figure: 1, mounting mechanism; 11, bending table; 12, mounting frame; 13, supporting plate; 2, supporting mechanism; 21, fixed support frame; 22, movable support frame; 3, bending mechanism; 31, L-shaped positioning plate; 32, bending assembly; 321, plug-in connecting frame; 322, rotating shaft; 323, rotating driving piece; 324, bending piece; 33, rotating connecting piece; 4, driving mechanism; 41, locking assembly; 411, L-shaped movable frame; 412, trapezoidal block one; 413, rack one; 42, driving assembly; 421, U-shaped movable frame; 422, trapezoidal block two; 423, rack two. DETAILED DESCRIPTION

[0035] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0036] With reference to Figure 1 , Figure 4 and Figure 5 , a terminal bending device for automobile wiring harness is mainly used for bending operation of the terminal of the connector of the automobile wiring harness, comprising a mounting mechanism 1 for bottom support and front and rear side limiting, the mounting mechanism 1 comprises a bending table 11, and the top wall left part of the bending table 11 is fixedly connected with a mounting frame 12 for limiting the front and rear side of the connector seat of the terminal of the wiring harness, and the top wall right part of the bending table 11 is fixedly connected with a supporting plate 13 for bottom support of the connector seat of the terminal of the wiring harness.

[0037] With reference to Figure 1 , Figure 4 and Figure 5 , a supporting mechanism 2 is arranged on the mounting mechanism 1, the supporting mechanism 2 comprises a fixed supporting frame 21 fixedly connected to the front part of the top wall of the mounting mechanism 1 and a movable supporting frame 22 connected to the rear part of the top wall of the mounting mechanism 1 through an electric sliding block.

[0038] With reference to Figure 1 , Figure 4 and Figure 5 , a bending mechanism 3 is arranged on the supporting mechanism 2, the bending mechanism 3 comprises an L-shaped positioning plate 31 fixedly connected to the movable supporting frame 22 and a plurality of bending assemblies 32 arranged on the movable supporting frame 22, further comprising a rotating connecting piece 33 arranged on the fixed supporting frame 21, and the rotating connecting piece 33 corresponds to the front and rear of the bending assembly 32; the L-shaped positioning plate 31 and the plurality of bending assemblies 32 are distributed in a stepped manner and are matched with the multi-layer terminals of the terminal of the wiring harness, the L-shaped positioning plate 31 is located above the uppermost layer of the terminal of the wiring harness, the plurality of bending assemblies 32 are respectively located between the adjacent two layers of the terminal, and a groove one matched with the front end of the L-shaped positioning plate 31 is arranged on the rear side wall of the fixed supporting frame 21, and the L-shaped positioning plate 31 is connected with the fixed supporting frame 21.

[0039] The working object of the present application is a complex wiring harness terminal connector with multiple rows and multiple columns of terminals, multiple rows of terminals in a stepped distribution, and terminals in the same row being equal in length, the uppermost layer of the terminal being the shortest, and the lowermost layer of the terminal being the longest, the complex wiring harness terminal connector comprising a connector seat and a plurality of rows of terminals already installed on the connector seat, the bending process comprising pre-positioning and step-by-step continuous bending, and the terminals are sequentially bent after one-time accurate positioning.

[0040] In the process of overall positioning of the wire harness terminal connector, the wire harness terminal connector is placed on the bending table 11 by a mechanical claw (not shown in the figure), and the connector seat is placed between the two mounting frames 12 opposite to each other, and the bottom of the connector seat is supported by the bending table 11 and the supporting plate 13 (as shown in Figure 8 ).

[0041] In the process of pre-positioning of the L-shaped positioning plate 31 and the bending assembly 32, the movable support frame 22 is driven by the electric sliding block to slide from back to front, and the movable support frame 22 drives the L-shaped positioning plate 31 and the bending assembly 32 to move forward as a whole, and the L-shaped positioning plate 31 and the bending assembly 32 are connected with the fixed support frame 21 and the rotating connecting piece 33 to form a bending module, and a plurality of bending assemblies 32 sequentially bend the terminals from top to bottom, and the initial state of the complex wire harness terminal connector bending operation is as shown in Figure 2 , and the state after the bending is completed is as shown in Figure 3 .

[0042] Referring to Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 , the bending assembly 32 comprises a plug-in connecting frame 321 fixedly connected to the front side wall of the movable support frame 22, the middle part of the plug-in connecting frame 321 is Z-shaped, the front end of the plug-in connecting frame 321 is inverted L-shaped, the rear side wall of the fixed support frame 21 is provided with a groove two matched with the front end of the plug-in connecting frame 321, and the plug-in connecting frame 321 is connected with the fixed support frame 21 in a clamping manner; the vertical section of the right side wall of the plug-in connecting frame 321 is rotatably connected with a rotating shaft 322, the middle part of the rotating shaft 322 is cylindrical, the front end is cross-shaped, the rear side wall of the rotating shaft 322 is fixedly connected with a rotating driving piece 323; the rotating driving piece 323 comprises a connecting column one fixedly connected to the rear side wall of the rotating shaft 322 and a gear one coaxially fixed with the connecting column one, the connecting column one is rotatably connected to the movable support frame 22, the gear one is rotatably connected to the rear side wall of the movable support frame 22, and the middle part of the rotating shaft 322 is fixedly connected with a bending piece 324.

[0043] Referring to Figure 4 , Figure 5 , Figure 6 and Figure 10 , the rotating connecting piece 33 comprises a connecting column two rotatably connected to the fixed support frame 21 and a gear two coaxially fixed with the connecting column two, the gear two is rotatably connected to the front side wall of the fixed support frame 21, the rear side wall of the connecting column two is provided with a cross-shaped groove matched with the front end of the rotating shaft 322, and the rear side wall of the connecting column two is connected with the front end of the rotating shaft 322 in a clamping manner.

[0044] Referring to Figure 1 , Figure 4、 Figure 5 、 Figure 10 、 Figure 11 and Figure 12 The automobile wire harness terminal bending device further comprises two groups of driving mechanisms 4 arranged on the fixed support frame 21 and the movable support frame 22, the driving mechanism 4 comprises a locking assembly 41 and a driving assembly 42; the driving assembly 42 comprises a U-shaped movable frame 421 slidably connected to the fixed support frame 21 and the movable support frame 22 through an electric sliding block, the sliding path is inclined from the upper left to the lower right, a trapezoidal block two 422 fixed to the horizontal section is arranged in the opening of the U-shaped movable frame 421, and a rack two 423 matched with the gear one and the gear two is fixedly connected to the upper side wall of the U-shaped movable frame 421.

[0045] Referring to Figure 1 、 Figure 4 、 Figure 5 、 Figure 10 、 Figure 11 and Figure 12 The locking assembly 41 comprises a plurality of L-shaped movable frames 411 slidably connected to the fixed support frame 21 and the movable support frame 22 through springs (not shown in the figure), and the sliding path is inclined from the lower left to the upper right, the L-shaped movable frame 411 corresponds to the rotating connecting piece 33 and the rotating driving piece 323, a rack one 413 matched with the gear one and the gear two is fixedly connected to the upper end of the L-shaped movable frame 411, and a trapezoidal block one 412 matched with the trapezoidal block two 422 is fixedly connected to the lower end of the L-shaped movable frame 411.

[0046] The movable support frame 22 drives the L-shaped positioning plate 31 and the bending assembly 32 to move forward as a whole, and the specific process is as follows: the L-shaped positioning plate 31 gradually moves above the uppermost terminal, when moving, part of the bottom wall of the left part of the L-shaped positioning plate 31 slides on the connector seat, the plug-in connecting frame 321 gradually moves above the corresponding plurality of non-uppermost terminals, part of the bottom wall of the left part of the plug-in connecting frame 321 slides on the connector seat, so that the L-shaped positioning plate 31 and the plug-in connecting frame 321 remain in a horizontal state during movement, facilitating subsequent butt joint work, and the upper and lower adjacent terminal layers are separated by the plug-in connecting frame 321 and the bending piece 324, and the plurality of bending assemblies 32 are simultaneously moved and positioned to realize one-time accurate positioning of the bending position without repeated bending and positioning.

[0047] The L-shaped positioning plate 31, bending assembly 32, fixed support frame 21, and rotating connector 33 are connected to form a bending module, as follows: The L-shaped positioning plate 31, plug-in connector 321, and rotating shaft 322 gradually slide forward. The front end of the L-shaped positioning plate 31 engages with slot one on the fixed support frame 21, the front end of the plug-in connector 321 engages with corresponding slot two on the fixed support frame 21, and the front end of the rotating shaft 322 engages with corresponding cross slot on connecting column two. The connection is thus completed. (Previously, the connection was as follows...) Figure 4 , Figure 5 and Figure 6 After docking, as Figure 1 As shown. It should be noted that the cross groove is locked during docking and aligned with the front end of the rotating shaft 322.

[0048] Multiple bending components 32 are driven by a drive mechanism 4 to sequentially bend the multi-layer terminals from top to bottom. Specifically: Figure 4 , Figure 5 , Figure 10 , Figure 11 and Figure 12 As shown, in the initial state, the L-shaped movable frame 411 supports rack 413 and trapezoidal block 412. The rack 413 on the front side meshes with gear 2 of the rotating connector 33, and the rack 413 on the rear side meshes with gear 1 of the corresponding rotating drive 323, thereby locking the positions of the rotating connector 33 and the rotating drive 323.

[0049] The U-shaped movable frames 421 on both the front and rear sides simultaneously slide from the upper left to the lower right on the corresponding fixed support frame 21 and movable support frame 22 via hydraulic rods (not shown in the figure). This causes the front U-shaped movable frame 421 to gradually approach the corresponding gear two, and the rear U-shaped movable frame 421 to gradually approach the corresponding gear one. At the same time, it causes the trapezoidal block two 422 to approach the corresponding trapezoidal block one 412. The inclined side of trapezoidal block two 422 matches the inclined side of trapezoidal block one 412. When trapezoidal block two 422 moves, its inclined side pushes the inclined side of trapezoidal block one 412. The inclined side, trapezoidal block 412 drives L-shaped movable frame 411 and rack 413 to move to the upper right. The spring connecting L-shaped movable frame 411 is compressed, and rack 413 no longer meshes with the corresponding gear 1 and gear 2. At the same time as the lock is released, U-shaped movable frame 421 meshes with the corresponding gear 1 and gear 2. Rotating connector 33 and rotating drive 323 are controlled by drive assembly 42. U-shaped movable frame 421 continues to drive rack 423 to move to the lower right. Rack 423 drives the corresponding gear 1 and gear 2 to rotate counterclockwise at the same time.

[0050] After rotating 90 degrees, trapezoidal block 2 422 disengages from trapezoidal block 1 412 and moves closer to the next trapezoidal block 1 412. The L-shaped movable frame 411, through spring reset, drives rack 1 413 to relock the corresponding gears 1 and 2, maintaining the state after the 90-degree rotation. Simultaneously, rack 2 423 disengages from the corresponding gears 1 and 2 and moves closer to the next gears 1 and 2. Through the above driving process, multiple bending components 32 and rotating connectors 33 are driven to rotate sequentially from the upper left to the lower right.

[0051] refer to Figure 6 , Figure 7 , Figure 8 and Figure 9 The rotating connector 33 and the rotating drive 323 drive the rotating shaft 322 to rotate counterclockwise by 90 degrees on the plug-in connector 321. The bending component 324 performs a 90-degree flip and bending operation, bending the multi-layer terminals sequentially from top to bottom. The top and bottom of the bending point of the uppermost terminal are limited by the L-shaped positioning plate 31 and the corresponding plug-in connector 321, respectively. The top and bottom of the bending points of terminals other than the uppermost terminal are limited by the adjacent plug-in connectors 321 above and below. During bending, the bending component 324 bends the terminals of the same layer in batches. After bending, the bending component 324 remains in a locked state.

[0052] The bending section of the topmost terminal is limited by the L-shaped positioning plate 31 and the corresponding flipped bending piece 324. The bending sections of the non-topmost terminals are limited by the adjacent left and right bending pieces 324 after flipping. The bending sections of terminals in adjacent layers are blocked by the bending pieces 324 between them. Therefore, it is avoided that the terminals in adjacent layers collide and squeeze each other on the movement trajectory during the bending process, which may lead to the deformation or damage of the terminals, thus ensuring the quality and accuracy of the terminal bending.

[0053] It should be noted that the parts of the L-shaped positioning plate 31, the plug-in connector 321, the rotating shaft 322, and the bent part 324 that come into contact with the terminal are all rounded with chamfers to prevent wear on the terminal surface.

[0054] It should be noted that the number of teeth of gear one, gear two, rack one 413, rack two 423, the sliding distance of the U-shaped movable frame 421, the path of the hydraulic rod pushing the U-shaped movable frame 421 to move, and the dimensions of the bending part 324 are all based on the corresponding terminals and the results obtained by those skilled in the art through multiple experiments.

[0055] The entire processing is monitored by taking photos of the terminal's position and angle before and after bending using an externally mounted industrial camera (not shown in the figure) to ensure bending accuracy. If any deviation is detected, the system will issue an alarm. A force sensor (not shown in the figure) is installed on the bent part 324 to monitor the resistance during the bending process. If abnormal resistance indicates potential interference or material problems, the equipment will stop immediately.

[0056] After the bending operation is completed, the movable support frame 22 slides backward, causing the L-shaped positioning plate 31, the bending component 32 to disengage from the fixed support frame 21 and the corresponding rotating connector 33. The bending component 32 moves backward to remove the gap between the two layers of terminals, making way for the output position of the bent wire harness terminal. When this wire harness terminal is output and the next wire harness terminal is output, the U-shaped movable frame 421 moves from the lower right position to the upper left position to reset.

[0057] In addition, the present invention also provides a method for bending automotive wiring harness terminals, which is completed using the above-mentioned automotive wiring harness terminal bending equipment, specifically including the following steps: S1, preparation: crimping the terminal onto the connector.

[0058] S2, Pre-positioning: The robotic arm grasps the connector and moves the connector and terminals to the mounting mechanism 1 for positioning. Two mounting brackets 12 limit the position from the front and rear sides, and the support plate 13 supports the bottom. The movable support frame 22 slides forward, causing the L-shaped positioning plate 31 and the bending assembly 32 to dock with the fixed support frame 21 and the rotating connector 33 to form a bending module, positioning the bending position of the multi-layer terminals in one go.

[0059] S3, Layered Continuous Bending: Multiple bending components 32 and corresponding rotating connectors 33 cooperate to perform orderly and continuous bending operations of multi-layer terminals from top to bottom.

[0060] S4. Discharge: The support mechanism 2 and the bending mechanism 3 are disconnected, and the robot arm picks up the bent terminal and discharges it.

[0061] In this invention, the movable support frame 22 slides forward, causing the L-shaped positioning plate 31 and bending assembly 32 to connect with the fixed support frame 21 and rotating connector 33 to form a bending module. This allows for precise positioning of the bending positions of multiple layers of terminals in one operation. Multiple bending assemblies 32 and corresponding rotating connectors 33 work together to perform continuous bending operations on the multiple layers of terminals sequentially from top to bottom. The multiple bending assemblies 32 limit and isolate adjacent layers of terminals, preventing collisions and compression during bending. Although this invention increases the number of bending assemblies 32 and rotating connectors 33 compared to existing technologies, thus increasing equipment costs, it shortens the bending interval between different layers of terminals, significantly improving processing efficiency. It also ensures stability and precision during bending, isolates multiple layers of terminals, and guarantees the quality of terminal bending.

[0062] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0063] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0065] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automobile wire harness terminal bending apparatus comprising a mounting mechanism, characterized by, The mounting mechanism is used for bottom support and front and rear side limiting, and a supporting mechanism is arranged on the mounting mechanism, and the supporting mechanism comprises a fixed supporting frame fixedly connected to the front of the top wall of the mounting mechanism and a movable supporting frame slidingly connected to the rear of the top wall of the mounting mechanism; The supporting mechanism is provided with a bending mechanism, the bending mechanism comprises an L-shaped positioning plate fixedly connected to the movable supporting frame and a plurality of bending assemblies arranged on the movable supporting frame, and further comprises a rotating connecting piece arranged on the fixed supporting frame, and the rotating connecting piece corresponds to the bending assemblies in front and rear directions; The L-shaped positioning plate and the bending assemblies are driven by the movable supporting frame to slide forward to be connected to the fixed supporting frame and the rotating connecting piece to become a bending module, so that the bending positions of the multiple layers of terminals are positioned at one time, the multiple bending assemblies and the corresponding rotating connecting pieces cooperate to perform the bending operation of the multiple layers of terminals in an orderly and continuous manner from top to bottom, and the bending sections of the terminals of adjacent layers are blocked by the bending assemblies.

2. The automobile wire harness terminal bending apparatus according to claim 1, characterized by The L-shaped positioning plate and the multiple bending assemblies are in a step-shaped distribution matched with the multiple layers of terminals of the wire harness terminals, and a rear side wall of the fixed supporting frame is provided with a slot one matched with the front end of the L-shaped positioning plate.

3. The automobile wire harness terminal bending apparatus according to claim 1, characterized by The bending assembly comprises an insertion connecting frame fixedly connected to the front side wall of the movable supporting frame, a middle part of the insertion connecting frame is in a Z-shaped structure, and a rear side wall of the fixed supporting frame is provided with a slot two matched with the front end of the insertion connecting frame.

4. The automobile wire harness terminal bending apparatus according to claim 3, characterized by A vertical section right side wall of the insertion connecting frame is rotationally connected with a rotating shaft, a middle part of the rotating shaft is in a cylindrical structure, a front end of the rotating shaft is in a cross-shaped structure, and a rear side wall of the rotating shaft is fixedly connected with a rotating driving piece.

5. The automobile wire harness terminal bending apparatus according to claim 4, characterized by The rotating driving piece comprises a connecting column one fixedly connected to the rear side wall of the rotating shaft and a gear one coaxially fixed with the connecting column one, the connecting column one is rotationally connected to the movable supporting frame, the gear one is rotationally connected to the rear side wall of the movable supporting frame, and a middle part of the rotating shaft is fixedly connected with a bending piece.

6. The automobile wire harness terminal bending apparatus according to claim 5, characterized by The rotating connecting piece comprises a connecting column two rotationally connected to the fixed supporting frame and a gear two coaxially fixed with the connecting column two, the gear two is rotationally connected to the front side wall of the fixed supporting frame, and a rear side wall of the connecting column two is provided with a cross-shaped slot matched with the front end of the rotating shaft.

7. The automobile wire harness terminal bending apparatus according to claim 1, characterized by Further comprising two groups of driving mechanisms arranged on the fixed supporting frame and the movable supporting frame, the driving mechanism comprises a locking assembly and a driving assembly.

8. The automobile wire harness terminal bending apparatus according to claim 7, characterized by The driving assembly comprises a U-shaped movable frame slidingly connected to the fixed supporting frame and the movable supporting frame, a trapezoidal block two is arranged in an opening of the U-shaped movable frame and fixed to a horizontal section, and an upper side wall of the U-shaped movable frame is fixedly connected with a rack two matched with the gear one and the gear two.

9. The automobile wire harness terminal bending apparatus according to claim 8, characterized by The locking assembly comprises a plurality of L-shaped movable frames slidingly connected to the fixed supporting frame and the movable supporting frame, the L-shaped movable frames correspond to the rotating connecting piece and the rotating driving piece, an upper end of the L-shaped movable frame is fixedly connected with a rack one matched with the gear one and the gear two, and a lower end of the L-shaped movable frame is fixedly connected with a trapezoidal block one matched with the trapezoidal block two.

10. A method for bending a terminal of an automobile wiring harness, which is performed in cooperation with the automobile wiring harness terminal bending apparatus as claimed in claim 1, characterized by: The method comprises the following steps: S1, preparation work: press the terminals to the connector; S2, pre-positioning: the mechanical hand grabs the connector, drives the connector and the terminal to move to the mounting mechanism for positioning, and the supporting mechanism and the bending mechanism are connected and matched to position the bending position; S3, hierarchical continuous bending: the bending mechanism bends the terminals from short to long in multiple layers from top to bottom; S4, discharging: the support mechanism and the bending mechanism are disconnected, and the manipulator takes out the bent terminals.

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